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Chemical Engineering - Chemical Engineering Thermodynamics

Exercise : Chemical Engineering Thermodynamics - Section 5
41.
Critical compressibility factor for all substances
are more or less constant (vary from 0.2 to 0.3).
vary as square of the absolute temperature.
vary as square of the absolute pressure.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
42.
What is the degree of freedom for two mis-cible (non-reacting) substances in vapor-liquid equilibrium forming an azeotrope ?
0
1
2
3
Answer: Option
Explanation:
No answer description is available. Let's discuss.
43.
For a given substance at a specified temperature, activity is __________ to fugacity.
directly proportional
inversely proportional
equal
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
44.
In case of vapour compression refrigeration system, elevating the evaporator temperature (keeping the condenser temperature constant) results in
enhanced COP.
decreased COP.
no change in the value of COP.
increased or decreased COP ; depending upon the type of refrigerant.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
45.
For water at 300°C, it has a vapour pressure 8592.7 kPa and fugacity 6738.9 kPa Under these conditions, one mole of water in liquid phase has a volume of 25.28 cm3 and that in vapour phase in 391.1 cm3.Fugacity of water (in kPa) at 9000 kPa will be
6738.9
6753.5
7058.3
9000
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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